EUVD-2026-78572
GHSA-m238-h73w-r4f2
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Authorization logic validation
MITRE ATT&CK
1 technique across 1 tactic: Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
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Alert meAnalysisAIv1 – Sep 15, 2026
Privilege escalation in OpenBMC's phosphor-net-ipmid IPMI stack allows an attacker who already holds a valid low-privileged IPMI session to redirect that session's authorization context to a different, higher-privileged account while the original integrity and encryption keys stay in place, so no re-authentication ever occurs. Downstream vendors that package phosphor-net-ipmid — NVIDIA and H3C among them — inherit the flaw in their BMC firmware. Rated CVSS 8.8 with high confidentiality, integrity and availability impact; no public exploit code identified at time of analysis, and the issue is not listed in CISA KEV.
Affected VersionsENISA
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Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from Vendor (runZero) · only source for this CVE.
CVSS VectorVendor: runZero
DescriptionCVE.org
OpenBMC's IPMI implementation, phosphor-net-ipmid, is vulnerable to a logic flaw where the authorization context of an existing session can be replaced with a target account while still maintaining the original integrity and encryption keys. Several downstream vendors implement phosphor-net-ipmid as their IPMI stack, such as NVIDIA and H3C. This issue effectively allows for privilege escalation without re-authentication.
Threat Intelligence Overview
NVD
CVE.org
EPSS
Vulnrichment
How this decision was reached
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What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.
In OpenBMC 2.9, crafted IPMI messages allow an attacker to bypass authentication and gain full control of the system. Ra
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An authentication bypass in OpenBMC's phosphor-net-ipmid IPMI stack lets a network attacker with no credentials complete
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A vulnerability in bmcweb of OpenBMC Project allows user to cause denial of service. Rated high severity (CVSS 7.5), thi
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Exploit-DB